Home page
SPONSOR AD SPONSOR AD

Topic: Front Springs

in Forum: C3 Handling Components


Front Springs

Posted: 4/2/06 8:38pm Message 1 of 9
Former Member
Send PM
Gilbert, AZ - USA
Joined: 4/26/2004
Posts: 108
Vette(s): 1976 Stingray Coupe

Hi Guys and Girls !!

 

It's been sometime since I made a post although I have been reading a lot of them, I  have a question regarding front springs, I have a 1976 Coupe and it is in dire need of new springs (I hope) I am assuming the ones on there have never been replaced and if they have then they are due for replacement agiain, I have two questions or is it three, Which spring sould I use standard or Gymkana (i do not know which i currently have) and what is the advantage of using the 'rubber cushions at the base they raise the car 1" higher is that a good thing, and ....... does anyone know where i cand rent the spring compressors (autozone maybe ?)

 

Thanks

 

 

Gary




SPONSOR AD:: (Our Sponsors help support C3VR)

Front Springs

Posted: 4/3/06 12:00pm Message 2 of 9
Profile Pic
Lifetime MemberLifetime Member
Moderator
Send PM
CUYAHOGA FALLS, OH - USA
Joined: 12/2/2003
Posts: 6424
Vette(s): 1975 C3 Red, T-Tops, Black Interior. All I need is time and money! Getting there!

Autozone does have the spring compressors.   When you put the new coils in you may want to take them to a spring shop and have them banded.  Banding is compressing the springs, wrapping all but the top and bottom coils in steel bands to keep them compressed.   Installation is quite easy at that point.  Once in place and seated with a bit of tension, cut the bands and pull them out.  Just make sure the springs are seated, or it can get ugly.

The stock spring were often 330 lbs rating.  You can get stiffer springs, all the way up to 550 lbs.  The stiffer springs usually reduce the ride height a bit.

How high is your car now?  On a flat surface the wheel well openings are about 28 1/2 inches in stock form.  I say about due to difference in the body fit and construction.  Frame measurements are more accurate, but the wheel opening is a good starting place.

If you use the 550 lbs springs, you may want to use the spacers and keep the car at normal ride height.  The biggest factor in lowering the original ride height is will you wheels clear?  With 70 series this should not be a problem, but with 60s it can be a big issue.

The stiffer springs will likely handle better, but the ride will be worse.  What did you have in the first place?  Look at your rear leaf.  If it has 9 leafs, you have the stock suspension.  7 leafs is the gymkana performance setup.

Don't forget a good set of shocks when you put it back together.  This is also a good time to do the control arm bushings if they have any wear or cracking.




Front Springs

Posted: 4/3/06 1:51pm Message 3 of 9
Lifetime MemberLifetime Member
Send PM
ANCHORAGE, AK - USA
Joined: 10/12/2004
Posts: 2193
Vette(s): 1965-327 coupe, 1968-small block coupe, 1969-427, 1971-454 coupe and currently a 1976-ZZ4 coupe reborn again,and hotter than ever.. Add a 1996 CE LT-4 for backup
Ken, Thanks for the information you passed on to Gary, I have been thinking about the same thing with my springs. You gave all the accurate information. I did the wheel well thing(measurements) and thats what I have, you answered my questions about spring pounds and what the difference does, the ride, rear springs..Your the man and thanks again..Terry




   "I Love all Corvettes! LifeTime Member #60..Terry"

Front Springs

Posted: 4/3/06 4:28pm Message 4 of 9
Profile Pic
Lifetime MemberLifetime Member
Moderator
Send PM
CUYAHOGA FALLS, OH - USA
Joined: 12/2/2003
Posts: 6424
Vette(s): 1975 C3 Red, T-Tops, Black Interior. All I need is time and money! Getting there!
Glad to help


Front Springs

Posted: 4/3/06 5:57pm Message 5 of 9
Former Member
Send PM
BURBANK, WA - USA
Joined: 12/21/2004
Posts: 59
Vette(s): 1981 Frost Beige Coupe... all original.. My SECOND Love...

On the subject of springs..  I'm beginning to buy parts for a suspension rebuild next fall.  My 81 has been sitting mostly (75K mile) for the last several years.  My question is should I go ahead and replace the rear spring when I do the rest of the rear suspension work, or do the fiberglass springs last forever?  To the best of my knowledge I don't have any issues with the way the car rides or handles...

Thanks!




Front Springs

Posted: 4/3/06 6:32pm Message 6 of 9
Profile Pic
Lifetime MemberLifetime Member
Moderator
Send PM
CUYAHOGA FALLS, OH - USA
Joined: 12/2/2003
Posts: 6424
Vette(s): 1975 C3 Red, T-Tops, Black Interior. All I need is time and money! Getting there!
If the spring has not sagged, and the ride height is correct, there is no need to replace the glass rear spring, unless it has gouges, chips, etc.  If the structure is damaged the bad spot will grow and finally break.  The flip side is if you had that damage, it would probably have failed by now.


Front Springs

Posted: 4/3/06 6:44pm Message 7 of 9
Profile Pic
Lifetime MemberLifetime Member
Moderator
Send PM
Moses Lake, WA - USA
Joined: 4/16/2005
Posts: 2134
Vette(s): 1976 L48 4-spd, Mahogany Metalic exterior, Buckskin interior 350ci/350hp, 3rd owner, fiberglass spring, 255/50-16's Torq-Thrust II

I just did my front end rebuild this winter and went with the 460 lb grand touring springs up front. The wheel opening is about 27.5" now. I have a 76 with A/C and a stock engine. I did mine without a spring compressor. It can be done safely, you just need to be careful and take your time.




Front Springs

Posted: 4/3/06 7:43pm Message 8 of 9
Lifetime MemberLifetime Member
Send PM
ANCHORAGE, AK - USA
Joined: 10/12/2004
Posts: 2193
Vette(s): 1965-327 coupe, 1968-small block coupe, 1969-427, 1971-454 coupe and currently a 1976-ZZ4 coupe reborn again,and hotter than ever.. Add a 1996 CE LT-4 for backup
Glen, where did you get the springs from? I would like to drop my front about 1 inch and that 460# will do it?..Terry




   "I Love all Corvettes! LifeTime Member #60..Terry"

Front Springs

Posted: 4/3/06 8:04pm Message 9 of 9
Profile Pic
Lifetime MemberLifetime Member
Moderator
Send PM
Moses Lake, WA - USA
Joined: 4/16/2005
Posts: 2134
Vette(s): 1976 L48 4-spd, Mahogany Metalic exterior, Buckskin interior 350ci/350hp, 3rd owner, fiberglass spring, 255/50-16's Torq-Thrust II

in Forum: C3 Handling Components


SPONSOR AD: (Our Sponsors help support C3VR)